Improvement in feed-water heaters



J. SOHO-LES. Feed-Water Heater.

No. 217,644. Patented Ju'ly15, 1879.

FIG. I.

FIG. ll.

INVENTUR; WITNESSES; J Sh j/wodf Mame JAMES SOHOLES,

OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF HIS RIGHT TO SAMUEL F. HODGE, OF SAME PLACE.

IMPROVEMENT m FEED-WATER HEATERS.

Specification forming part of Letters Patent No. 217,644, dated July 15, 1879; application filed May 29, 1879.

To all whom it may concern:

Be it known that I, JAMES ScHoLEs, of Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Feedater Heaters, of which the following is a specification.

My invention relates to an improvementin that class of feed-water heaters in which the exhaust-steam comes in direct contact with the feed-water in a chamber connected with the exhaust-pipe.

This kind of feed-water heaters is found in practice to work very well when the pressure of the exhaust-steam is low but when the exhaust-steam has a high pressure it enters the feed-water chamber with such force as to drive the water therefrom into the exhaust-pipe, and forces it therefrom out into the air or into a condenser, thus interrnptin g the feed.

It is the object of my invention to prevent this forcing of the feed-water from its chamher, and at the same time secure the entrance ofa sufficient quantity of the exhaust-steam into said chamber to properly heat the water.

It consists in connecting" the feed water chamber with an exhaust-pipe by means of a suitable steam-passage, in which is arranged a gate or valve adapted to be operated from withoutto regulate the quantity of steam passing therethrough and to obstruct its flow, whereby the force with which the steam enters the feed-water chamber may be so reduced that it will not drive the water from said chamber.

It consists, further, in prolonging one of the walls of the passage connecting the exhaustpipe with the feed-water chamber, so that it will extend into the exhaust-pipe and serve to deflect a portion of the steam into the said feed-water chamber, whereby a proper heating of the feed-water is guaranteed.

In the accompanying drawings, Figure I represents an arrangement by which my in vention is carried into effect, and Fig. II a section taken on line a: w of Fig. 1.

The letter A indicates an exhaust-pipe, and

B the feed-water chamber connected with the exhaust-pipe by a passage, 0, in which is arranged a butterfly-valve, D, the spindle E of which extends outward through the wall of said-passage, and is adapted to be turned to operate the valve for the purpose before mentioned.

One of the walls f of the passage 0 is prolonged into the exhaust-pipe, and stands in the path of the steam flowing through said pipe, in order to deflect a portion of said steam into the feed- Water chamber for the purpose of heating the water.

The arrow in the drawings indicates the course of the exhaust-steam when the pipe is connected with a steam-cylinder.

In the drawings a portion of the exhaustpipe forms a portion of the wall of the feedwater chamber; but, of course, I do not eonfine myself to that construction; nor do I confine myself to a butterfly-valve, as there are other forms which will serve as well.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. The combination, with afeed-water-heating chamber, an exhaust-steam pipe, and a steam-passage connecting said chamber and pipe, of a gate or valve arranged in said passage and adapted to be operated from without, substantially as and for the purpose set forth.

2. Thecombination, with a feed-Water-heater chamber, an exhaust steam pipe, and a steam-passage eonnectingsaid pipe and chamber, of a deflector formed by the prolongation of one of the walls of said passage into said exhaust-pipe, substantially as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand in the presence of the subscribing witnesses.

JAMES SOHOLES.

Witnesses:

W. M. LILLIBRIDGE, FREMONT WOODRUFF. 

